# Harness Useful

> Harness Useful is a family of four open-source, local tools for coding-agent harnesses such as Oh My Pi, PI, OpenCode, Claude Code and Codex: Harness Desktop (a desktop window), Harness Skills (a workflow), Harness Memory (shared project memory) and Harness Dashboard (a token usage and cost meter). Everything runs on your machine, with no telemetry and no accounts.

Each tool works on its own, and Harness Desktop can install the others with one recommended setup. All four are free under the GNU General Public License version 3. Every page of this site has a Markdown twin at the same path with a .md extension (the home page is index.md).

## Products

- [Harness Desktop](https://harness-useful.com/desktop.md): Harness Desktop is a native desktop app for coding-agent harness CLIs that runs on top of the CLI you already have installed.
- [Harness Skills](https://harness-useful.com/skills.md): Harness Skills is a set of owned us-* skills for Oh My Pi, Claude Code, OpenCode and Codex that take a natural-language request to reviewed, verified work.
- [Harness Memory](https://harness-useful.com/memory.md): Harness Memory is a local stdio MCP server that gives Claude Code, Codex, OMP, PI, OpenCode and any other MCP client one shared project memory.
- [Harness Dashboard](https://harness-useful.com/dashboard.md): Harness Dashboard is a local desktop app that reads the sessions your AI coding tools already write to disk and shows where your tokens and money go.

## Docs

- [FAQ](https://harness-useful.com/faq.md): Answers about Harness Useful: what the tools are, where to start, which coding agents they support, how to install them and where your data lives.
- [Harness Useful overview](https://harness-useful.com/index.md): Harness Useful is a family of four open-source, local tools for coding-agent CLIs: a desktop window, a workflow, shared memory and a usage meter.

## Source

- [Harness Useful website source](https://github.com/MSpiechowicz/harness-useful): the source of this website
- [Harness Desktop on GitHub](https://github.com/MSpiechowicz/harness-useful-desktop): source, releases and README
- [Harness Skills on GitHub](https://github.com/MSpiechowicz/harness-useful-skills): source, releases and README
- [Harness Memory on GitHub](https://github.com/MSpiechowicz/harness-useful-memory): source, releases and README
- [Harness Dashboard on GitHub](https://github.com/MSpiechowicz/harness-useful-dashboard): source, releases and README

## Optional

- [Full text of every page](https://harness-useful.com/llms-full.txt): all pages above concatenated as Markdown
- [Sitemap](https://harness-useful.com/sitemap.xml): every page of the site